As an experienced mobile app developer with a strong command over Java and PHP, I have the necessary skills to build your Android exam preparation app. I've also been engaged in developing various educational apps that require the handling of multiple-choice questions, data uploads via Excel files, user login restrictions, and integating payment gateways such as Razorpay - all the exact features you require.
Not only will I provide a seamless user experience for your app through image-rich HTML+text editor for study materials and a thoughtful categorization mechanism for topics, but my expertise in SQL databases like MySQL, SQLite, Postgre SQL and MongoDB will ensure that data is stored securely and managed efficiently. Additionally, my competence with Google APIs and AWS services enable me to extend the functionality of your app by tapping into various cloud computing capabilities.
Apart from technical skills, I take great pride in my dedication to meet client's expectations. Working with me means commitment towards giving you a timely and high-quality product that aligns precisely with your vision. With me on this project strategic planning, adaptability to client needs and efficient problem-solving will be the key features of our collaboration. Choose me and let's make your Android Exam Prep app a game-changer!